Question:
Which of the following amino acids are encoded by only one codon:
A. Methionine B. Tyrosine C. Tryptophan D. Arginine
Which of the following amino acids are encoded by only one codon:
A. Methionine B. Tyrosine C. Tryptophan D. Arginine
Show Hint
âMet-Trpâ are the lonely ones---they only have one codon each.
Updated On: May 28, 2026
- A and B Only
- A and C Only
- C and D Only
- B and C Only
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1--3: Analysis
Methionine (AUG) and Tryptophan (UGG) are the only two amino acids coded by a single codon. Tyrosine has two codons; Arginine has six.
Step 4: Conclusion
Only Methionine and Tryptophan fit the criteria.
Final Answer: (B)
Methionine (AUG) and Tryptophan (UGG) are the only two amino acids coded by a single codon. Tyrosine has two codons; Arginine has six.
Step 4: Conclusion
Only Methionine and Tryptophan fit the criteria.
Final Answer: (B)
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